Description
Technical Specifications
- Product Model: IS420UCSBH3A
- Brand: GE
- Warranty: One Year
- Input Voltage: 18 – 36 VDC (Nominal 24 VDC)
- Operating Temperature: -40°C ~ +70°C
- Storage Temperature: -55°C ~ +85°C
- Response Time: Sub-millisecond real-time control loop execution
- Protection Class: IP20 (panel mounted enclosure)
- Accuracy Class: High precision closed-loop turbine control logic
- Output Frequency: Determined by application control algorithm
- Rated Current Range: 17.3 W nominal; 28.7 W peak power consumption
- Communication Interface: Dual IONet Ethernet, multi-port Gigabit Ethernet
- Supported Protocols: IONet, IEEE 1588 PTP, Modbus TCP, ControlST proprietary protocol
- Overload Capacity: Built-in overvoltage, overheat and ESD protection
- Dimensions: 205 mm × 163 mm × 36 mm
Product Overview
The GE IS420UCSBH3A is a UCSB universal control system board, a standalone high-performance controller built for the GE Mark VIe Speedtronic turbine control platform. This fanless embedded controller uses a 1.2 GHz quad-core Intel EP80579 processor running the QNX Neutrino real-time operating system, tasked with executing critical control sequences, protection logic and speed regulation for rotating machinery. It eliminates limitations of backplane-dependent legacy controllers by communicating with distributed remote I/O modules over dedicated IONet links, removing single points of failure in traditional rack architectures. Power plant automation engineers, turbine maintenance teams and system integrators benefit from on-board hardware diagnostics, conformal coated circuit boards and jumper-free configuration. The controller supports redundant network deployment to sustain continuous operation and reduces planned downtime during system upgrades or module replacement.
Application Scenarios
- Combined-Cycle Gas Turbine Control: Executes core speed control, load regulation and emergency trip logic for gas turbines. Distributed IONet architecture enables separation of control hardware and field instrumentation, lowering noise interference within power station control rooms.
- Steam Turbine Generator Overspeed Protection & Control: Deployed for continuous monitoring and governing of utility steam turbines. Fast real-time response ensures immediate protective action during rotor overspeed or abnormal operating conditions.
- Offshore Oil & Gas Compressor Control Systems: Operates within unconditioned offshore control cabins. Wide temperature tolerance and robust EMC design maintain stable performance for critical centrifugal compressor automation.
- Power Plant Retrofit & Mark VIe System Migration: Used as direct replacement hardware during upgrade projects for legacy GE turbine control systems. It retains compatibility with ControlST engineering software and existing field I/O modules to minimise rewiring and commissioning labour.
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